tested with batteries FRESH batteries are included in this USED and ORIGINAL manufacturer Factory Remote, it has been germicidal cleaned, tested and works. I am a remote specialist so please make sure that this is THE CORRECT MODEL you need (DO YOUR RESEARCH BEFORE BUYING, BE CERTAIN- 99.9 PERCENT of returns are due to buyers ordering the wrong model remote). To ENSURE secure delivery ALL MY REMOTES ARE SHIPPED USPS INSURED / SIGNATURE CONFIRMATION UPON DELIVERY, PLEASE MAKE SURE YOUR ADDRESS IS CORRECT BEFORE BUYING, thank you for looking To see if this is the correct remote for your device google the EXACT model number of the device with the word remote in the search field Ex: "Sony ABC-12345 Remote Control" To see if your existing remote is broken or if it?s your unit that is defective, the link below will teach you how to test your remote for function https://www.youtube.com/watch?v=UMPoifERrNs